Wrench head



FIG. 1 is a front perspective view of a wrench head, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left perspective view thereof;

FIG. 4 is a top perspective view thereof;

FIG. 5 is an inverted, left side perspective view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 shows a front perspective view of the wrench head of FIG. 1.

The dashed lines in the drawings show unclaimed subject matter only and form no part of the claimed design. 

CLAIM I claim the ornamental design for a wrench head, as shown. 